[Gllug] running TV and webcam simultaneously

Paul Brazier pbrazier at cosmos-uk.co.uk
Mon Apr 22 09:35:14 UTC 2002

> > So firstly is it possible in theory to have them both running at
> > and secondly how do I switch between the two video inputs without
> > rebooting?
> > 
> > I'm using Debian with a self-compiled 2.4.18 kernel.
> > 
> > --
> > Paul 
> > 
>    You will probably have trouble with any two sources unless you can
> synchronise them together. A single FIFO frame store requires 
> rather more
> memory than that in a TV card; there are some inexpensive 
> cameras which do
> have a reference input, but they will not be the cheapest webcams.

So does this just mean that I can't view both at once?
I should still be able to switch between one and the other, shouldn't I?
In xawtv for example there's a setting to select the video input. It
either says "webcam" or "tv card" depending on whether I've got the
webcam plugged in, but it doesn't give me the option to switch between
the two.

I would have thought that it was something like /dev/video0 was the tv
card and /dev/video1 was the webcam and /dev/video was a symlink to
whichever of these was currently being used. But this doesn't seem to


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